Multiple choice

The function of the choke is to

  1. increase the voltage

  2. give relatively large impedance of alternating current

  3. regulate the voltage

  4. give relatively large impedance of direct current
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Choke blocks higher-frequency alternating current in an electrical circuit while passing signals of much lower frequency and direct current by having an impedance largely determined by reactance. 

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